Stone-crusher.



J. M. STONE. STONE GRUSHER. APPLICATION FILED JUNE 20, 1908.

921,749, Patented May 18, 1909.

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J. M. STONE.-

STONE GRUSHER. APPLICATION FILED JUNE 20, 1908.

Patented May 18, 1909.

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JOHN M. STONE, OF MARION, OHIO, ASSIGNOR OF ONE-HALF TO GEORGE B.CHRISTIAN, OF MARION, OHIO.

' STONE-GRUSIIER.

T all whomit may concern:

Be it known that I, JOHN M. STONE, a citizen of the United States,residing at Marion, inthe county of Marion and State of Ohio, haveinvented certain new and useful Imrovements in Stone-Crushers, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

This invention relates to stone crushers, and more particularly to thattype of stone crushers known as the jaw crusher.

The object of the invention is to provide a crusher of this characterwith operating mechanism which will utilize to the greatest possibleextent the power applied thereto; which will exert a maximum amount ofpower upon the crusher and will transmit a minimum amount of the jar orvibration, incident to the operation of the crusher, to the engine; andfurther, to so construct and arrange the operating mechanism relativelyto the crusher as to form a compact arrangement and one which will bevery strong and durable.

With these objects in view my invention consists in certain combinationsand arrangements of parts and in certain novel features of constructionto be hereinafter described, and then more particularly pointed out inthe claims.

In the accompanying drawings, Figure 1 is a side elevation of a stonecrusher embodying my invention; Fig. 2 is an end elevation of the same;Fig. 3 is a transverse, sectional view on the line w of Fig. 2, showingthe operating mechanism in plan view, Fig. 4 is a detail sectional viewof one of the jaws, show-- ing the manner ofconnecting the operatinglever thereto; and Fig. 5 is a detail view of the bearing for one end ofthe operating lever.

In these drawings I have illustrated the preferred form of my inventionand have shown the same as comprising a base 1., upon which is mounted aframe comprising two upright andsubstantially parallel members 2 whichare rigidly secured at their lower ends to the base 1. A fixed jaw 3 isarranged between the side members 2 of the frame, in which it is securedwith its inner face inclined inwardly and downwardly. A second jaw 4: ismounted between the side members 2 of the frame in such a manner thatits lower end is movable toward and 55 away from the lower end of thefixed jaw 2.

Specification of Letters Patent.

Application filed June 20,1908.

Patented May 18, 1909.

Serial No. 439,515.

To accomplish this I preferably provide the movable jaw 4 near its upperend with a shaft 5 secured thereto by bearings or clips 6, which shaftprojects beyond the opposite edges of the movable jaw 4 and is journaledin bearings 7 on the edges of the side mem bers 2 of the frame. A collar8, preferably of cast iron, fits around the opening between the upperends of the jar-rs 3 and 4 and is rigidly secured to the upper edges ofthe frame members and to the fixed jaw 3, thus firmly bracing thesemembers.

In order to utilize to the greatest possible extent the power applied tothe operating mechanism, I prefer to construct this operating mechanismin the form of a lever which is so connected to the movable jaw as toafford a long and powerful leverage. To this end, I have provided anoperating lever 9 which is pivotally secured at one end to one of theside walls 2 of the frame. In the present instance, I have shown theinner end of the lever 9 as rounded, as shown at 10, and adapted to fitwithin a suitable socket bearing 11 having one side cut away to permitof the free insertion of the rounded end 10 of the lever and providedwith a pin or shaft 12 for retaining the end of the lever within thesame. The socket bearing is preferably cut away in the side next to thej to permit the insertion of the end of the lever, thus leaving theouter side of the socket intact and forming a bearing surface upon whichthe strain of the inward stroke of the lever will be exerted, therebyrelieving the pin 12 of a greater part of the strain incident to theoperation of the machine. This bearing is preferably located near thelower end of the movable jaxv and the lever 9 extends transverselytothat jaw and is secured thereto in any suitable manner which will permitof the free operation thereof. Tie preferred form of connecting thelever to the jar; consists in providing the movable jaw with atransverse bar 13 which is journaled at its opposite ends in suitablebearings 14, thus enabling the same to be moved about its longitudinalaxis. This transverse bar 13 is secured to the lever 9 by means of oneor more links 15 which are connected to the lever 9 by means of a pin 16extending through one .of the apertures 17 in each of the links andthrough a corresponding aperture in the lever 9. The inner ends of theinks 15 are preferably secured to a circular block 18 which is mounted110 in a recess 19 in the transverse bar 13 and is secured therein bymeans of a suitable strap or bearing late 20 secured to the bar by meansof bo ts 21. Thus, the movable jaw may be adjusted to regulate thedistance be tween the jaws, and, consequently, the size to which thestone will be crushed, in either one of two manners. The pin 16 may beshifted from one to another of the sets of apertures 17, or the block 18may be removed and a block of different size substituted therefor, thusmoving the movable jaw toward or away from the fixed jaw.

The lever 9 extends beyond one side of the frame 2, preferably byextending the same through a horizontal slot 22 formed in that sidemember of the frame. The outer end of the lever 9 is connected by meansof a universal joint 23 to an eccentric rod 24, which is provided at itsinner end with an eccentric strap 25 mounted on the eccentric 26 carriedby the shaft 27, which shaft is journaled in suitable bearings 28 formedin the supporting frame or base, which comprises two upright members 29between which the eccentric strap 25 is mounted. The shaft 27 projectsbeyond one of the side members 29 and is provided with a gear wheel 30adapted to mesh with a pinion 31 carried by a shaft 32 which is journaled in bearings 33 formed in the side walls 29 of the supportingframe. The opposite end of the shaft 32 extends beyond the inner wall 29of the supporting frame and is preferably j ournaled in a bearing 35mounted on the adjacent wall 2 of the crusher and is provided betweenthe wall 29 and the wall 2 with suitable means for rotating the same.such as the belt pulley 3d.

The operation of the machine will be readily understood and it will beapparent that, when power is applied to the belt pulley 34, theeccentric rod 24 and the lever 29 will be actuated, and, consequently,the movable jaw of the crusher will be operated, and that thisconstruction is such as to exert a maximum amount of power upon themovable jaw of the crusher; and that the connection between the leverand the engine is such that none of the vibration or jar caused by theoperation of the crusher will be transmitted to the engine or othersource of power. Further, it will be apparent that the bearings andsupports for the several moving parts are so constructed and arranged asto render the machine of a very strong, durable nature.

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and described, for obviousmodifications will occur to a person skilled in the art.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In a stone crusher of the character described, the combination, withside Walls, a

bearing carried by one of said side walls, a

walls and connected to the outer end of said lever.

2. In a stone crusher, the combination, with side walls, a pair of jawssupported be tween said side walls, one of said jaws being movable, anda lever extending transversely to said movable jaw and connectedthereto, of a supporting frame mounted alongside of one of said sidewalls, an eccentric shaft j ournaled in said supporting frame, a rodconnecting said eccentric shaft, to said lever, a gear mounted on saideccentric shaft, a second shaft mounted in said supporting frame andhaving a pinion adapted to mesh with said gear, and means for rotatingsaid second shaft.

3. I11 a stone crusher, the combination, with side walls, and a pair ofjaws supported between said side walls, one of said aws'being movable,of a bearing block carried by one of said side walls and having a socketformed therein, a lever extending transversely to said movable aw andhaving one end mounted in said socket, means for connecting said leverto said movable jaw at a point between said bearing block and theopposite side wall, and means for actuating said lever. I

4. In a stone crusher of the character described, the combination, withsidewalls, a pair of jaws supported between said side walls, one of saidjaws being movable, of a lever pivotally supported on one of said sidewalls and extending transversely to said jaw, a transverse bar mountedon said movable jaw and adapted to move about its longitudinal axis,means for connecting said bar to said lever, and means fol-actuatingsaid lever.

5. In a stone crusher of the character described, the combination, withside walls, and a pair of jaws supported between said side walls, one ofsaid jaws being movable, of

a lever pivotally supported on one of said side walls and extendingtransversely to said movable aw, a transverse bar pivotally mounted onsaid movable jaw, a bearing block mounted on said transverse bar, a linkconnecting said bearing block to said lever, and means for actuatingsaid lever.

6. In a stone crusher of the character described, the combination, withside Walls, and a pair of jaws supported between said side walls, one ofsaid jaws being movable, of

a bearing carried by one of said side Walls, a nected at one end to saideccentric shaft and T lever having one end pivotally mounted onconnected at its other end to said lever, and said bearing and itsopposite end extending means for rotating said eccentric shaft. beyondthe other of said side Walls, a trans- In testimony whereof, I affiX mysignature verse bar mounted on said movable jaw and in presence of twoWitnesses.

adapted to be moved about its longitudinal JOHN M. STONE.

axis, a link connecting said bar and said le- Witnesses:

ver, an eccentric shaft mounted at one side of NORA B. MARsH,

one of said side Walls, an eccentric rod con- JOHN H. BARTRAM.

